Pump Disassembly

WARNING — Always disconnect power to the pool pump at the circuit breaker and disconnect the communication cable before servicing the pump. Failure to do so could result in death or serious injury to serviceman, pool users or others due to electric shock.

Read all servicing instructions before working on the pump.

WARNING — DO NOT open the strainer pot if pump fails to prime or if pump has been operating without water in the strainer pot. Pumps operated in these circumstances may experience a build up of vapor pressure and may contain scalding hot water. Opening the pump may cause serious personal injury. In order to avoid the possibility of personal injury, make sure the suction and discharge valves are open and strainer pot temperature is cool to touch, then open with extreme caution.

CAUTION — Be sure not to scratch or mar the polished shaft seal faces; seal will leak if faces are damaged.

All moving parts are located in the rear subassembly of the IntelliFlo 4 pump.

Tools required:

•3/32 inch Allen head wrench.

•½ inch open end wrench.

•9/16 inch open end wrench.

•Flat blade screwdriver.

To remove and repair the pump mechanical seal, perform the following procedures:

1.Switch off the pump circuit breaker at the main panel.

2.Disconnect the RS-485 communication cable from the pump.

3.Drain the pump by removing the drain plugs.

4.Remove the six bolts that hold the main pump body (strainer pot/volute) to the rear subassembly.

5.GENTLY pull the two pump halves apart, removing the rear subassembly.

6.Use a 3/32 inch Allen head wrench to loosen the two holding screws located on the diffuser.

7.Hold the impeller securely in place and remove the impeller lock screw by using a Phillips head screwdriver. The screw is a left-handed thread and loosens in a clockwise direction.

8.Use a flat blade screwdriver to hold the motor shaft. The motor shaft has a slot on the end which is accessible through the center of the fan cover.

IntelliFlo 4 Installation and User’s Guide

4 160, 100 specifications

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Pentair 4 160, 100 important safety instructions Pump Disassembly

Models: 4 160 100